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參數(shù)資料
| 型號： | TAS5508BPAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 15/103頁 |
| 文件大?。?/td> | 1198K |
| 代理商： | TAS5508BPAG |
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2.2.5.2 TAS5508B Audio Signal-Processing Functions
TAS5508B
8-Channel Digital Audio PWM Processor
www.ti.com
SLES162C – DECEMBER 2005 – REVISED JULY 2009
To support efficiently the processing requirements of both multichannel 32-kHz to 96-kHz data and the
2-channel 176.4-kHz and 192-kHz data, the TAS5508B has separate audio-processing features for
32-kHz to 96-kHz data rates and for 176.4 kHz and 192 kHz. See Table 2-2 for a summary of TAS5508B
processing feature sets.
The DAP provides 10 primary signal-processing functions:
The data-processing input has a full 8×8 input crossbar mixer. This enables each input to be any mix
of the eight input channels.
Two I2C programmable threshold detectors in each channel support automute.
Seven biquads per channel
Four soft bass and treble tone controls with ±18-dB range, programmable corner frequencies, and
second-order slopes. In 8-channel mode, bass and treble controls are normally configured as follows:
–
Bass and treble 1: Channel 1 (left), channel 2 (right), and channel 7 (center)
–
Bass and treble 2: Channel 3 (left surround) and channel 4 (right surround)
–
Bass and treble 3: Channel 5 (left back surround) and channel 6 (right back surround)
–
Bass and treble 4: Channel 8 (subwoofer)
Individual channel and master volume controls. Each control provides an adjustment range of 18 dB to
–109 dB plus mute. This permits a total volume device control range of 36 dB to –109 dB plus mute.
The master volume control can be configured to control six or eight channels. The DAP soft volume
and mute update interval is I2C programmable. The update is performed at a fixed rate regardless of
the sample rate.
Programmable loudness compensation that is controlled via the combination of the master and
individual volume settings.
Two dual-threshold, dual-rate, dynamic range compressors (DRCs). The volume gain values provided
are used as input parameters using the maximum RMS (master volume
× individual channel volume).
8×2 output mixer (channels 1–6). Each output is a mix of any two signal-processed channels. It is
recommended to use the pass-through output mixer configuration.
8×3 output mixer (channels 7 and 8). Each output is a mix of any three signal-processed channels. It is
recommended to use the pass-through output mixer configuration.
The DAP maintains three sets of coefficient banks that are used to maintain separate sets of
sample-rate-dependent parameters for the biquad, tone controls, loudness, and DRC in RAM. These
can be set to be automatically selected for one or more data sample rates or can be manually selected
under I2C program control. This feature enables coefficients for different sample rates to be stored in
the TAS5508B and then selected when needed.
Description
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5508BPAGG4 | 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5508BPAGR | 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5508BPAGRG4 | 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5508C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-Channel Digital Audio PWM Processor |
| TAS5508CPAG | 功能描述:音頻 DSP 8Ch PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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